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Hierarchically porous carbon materials with high surface areas are hopeful candidates for energy storage and conversion. Herein, we present the facile synthesis of hierarchically porous carbons through the calcination of meta-organic framework (MOF)/chitosan composites. The effects of chitosan (CS) addictive on the pore structures of resultant carbons were discussed. The corresponding MOF/chitosan precursors could be readily converted into hierarchically porous carbons (NPC-V, V = 1, 2, 4, and 6) with much higher ratios of meso-/macropore volume to micropore volume (Vmeso-macro/Vmicro). The derived carbon NPC-2 with the high ratio of Vmeso-macro/Vmicro = 1.47 demonstrates a high specific surface area of 2375 m2 g-1, and a high pore volume of 2.49 cm3 g-1, as well as a high graphitization degree, comparison with its counterpart (NPC) without chitosan addition. These excellent features are favorable of rapid ion diffusion/transport, endowing NPC-2 with enhanced electrochemical behaviors as supercapacitor electrodes in a symmetric-electrode system, corresponding to a high specific capacitance of 199.9 F g-1 in the aqueous electrolyte and good rate capability. The good cycling stability is also observed after 10 000 cycles.
This article was published in the following journal.
Name: Chemistry, an Asian journal
The aim of this work aims to synthesize the high performance porous carbons from lignin and rice husk (RH) via one-step pyrolysis with KOH and PVC. And those porous carbons were evaluated for toluene ...
Phenol as a semi-volatile organic compound (SVOC) extensively presents in industrial wastewater. Moreover, it is a main compound of tar existing in the vapor phase from biomass pyrolysis or gasificati...
The superior capability of gemini surfactant (GS) in the preparation of hierarchically porous carbons (HPC) via high internal phase emulsions (HIPE) template followed by pyrolysis was confirmed in thi...
Oxygen-rich hierarchically porous carbons are prepared by employing one-step KOH activation of pitch-based oxidized spheres (POS) as carbon precursors. The activation temperatures not only allow direc...
Nitrogen-doped porous carbons have been extensively investigated to improve the specific capacitance in aqueous electrolytes by increasing the specific surface area and nitrogen content and by optimiz...
Evaluation of slow-release Tb4 collagen and chitosan porous sponge scaffolds skin substitutes the effectiveness of clinical trials for the treatment of difficult to heal wounds and securit...
Chitosan is a natural product that is produced commercially through the deacetylation of chitin, which is found in the exoskeleton of crustaceans. It has been suggested that chitosan has a...
The "dry eye syndrome" DES is a highly prevalent ocular disease, in particular in the elderly population. One mainstay of therapy for patients suffering from DES is the use of topically ad...
Aim of the present study is to assess the in vivo susceptibility of root canal bacteria to Chitosan,Chitosan nanoparticles ,and Chlorhexidine gluconate when used as intra canal medicaments...
The purpose of this research is to collect data on patients that had the Legion Porous HA Tibial Baseplates and/or the Legion Porous HA Femoral component implanted in the past. Smith & Nep...
The statistical manipulation of hierarchically and non-hierarchically nested data. It includes clustered data, such as a sample of subjects within a group of schools. Prevalent in the social, behavioral sciences, and biomedical sciences, both linear and nonlinear regression models are applied.
Usually high-molecular-weight, straight-chain primary alcohols, but can also range from as few as 4 carbons, derived from natural fats and oils, including lauryl, stearyl, oleyl, and linoleyl alcohols. They are used in pharmaceuticals, cosmetics, detergents, plastics, and lube oils and in textile manufacture. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed)
SESQUITERPENES cyclized into two adjoining rings, one being 7-carbons and the other is 5-carbons.
A linear polysaccharide of beta-1->4 linked units of ACETYLGLUCOSAMINE. It is the second most abundant biopolymer on earth, found especially in INSECTS and FUNGI. When deacetylated it is called CHITOSAN.
An ATP-Binding Cassette Transporter that functions in the import of long chain (13-21 carbons) and very long chain fatty acids (> 22 carbons), or their acyl-CoA-derivatives, into PEROXISOMES. Mutations in the ABCD1 gene are associated with the X-linked form of ADRENOLEUKODYSTROPHY.